US Bridges

Ia 3 over Drainage Ditch

Good

Butler County, Iowa · 0.4 Miles W of W Jct. 14 · Structure no. 000000000016530

Built
1951
74 years old
Condition
Good
inspected July 2024
Type
Culvert
Concrete Continuous
Length
35 ft
3 main spans
Daily traffic
1,080
2022 count
Owner
State
State Highway Agency

About this bridge

Ia 3 over Drainage Ditch is a concrete continuous culvert carrying Ia 3 over Drainage Ditch in Butler County, Iowa. It was built in 1951, so it is 74 years old, older than the Iowa average of 45.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 1,080 vehicles a day, roughly 18% of them trucks, projected to reach 1,080 by 2044. The structure is 35 ft (10.7 m) long and 52 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesIa 3
CrossesDrainage Ditch
Location0.4 Miles W of W Jct. 14
RouteState Highway 3
StateIowa
Coordinates42.7448, -92.81819
Functional classRural Principal Arterial - Other

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry7: Better than present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating27 US tons
Inventory rating20 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length35 ft (10.7 m)
Longest span10 ft (3 m)
Deck width52 ft (15.7 m)
Roadway width43 ft (13 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,080 (2022)
Projected traffic1,080 by 2044
Trucks18%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Ia 3 over Drainage Ditch built?

It was built in 1951, making it 74 years old in 2025.

What condition is Ia 3 over Drainage Ditch in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in July 2024.

How much traffic does Ia 3 over Drainage Ditch carry?

About 1,080 vehicles per day (2022 count), of which roughly 18% are trucks.

How long is Ia 3 over Drainage Ditch?

The structure is 35 ft (10.7 m) long with a longest span of 10 ft (3 m) and a deck 52 ft wide.

Who owns Ia 3 over Drainage Ditch?

It is owned by the State Highway Agency.